{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "The incidence of cardiovascular thrombotic events ( cardiac , cerebrovascular and peripheral vascular , or arterial thrombotic ) was determined by analyzing pooled valdecoxib ( 10 - 80 mg daily ) , nonselective NSAID ( diclofenac 75 mg bid , ibuprofen 800 mg tid , or naproxen 500 mg bid ) and placebo data from 10 randomized osteoarthritis and rheumatoid arthritis trials that were 6 - 52 weeks in duration ."}
{"Disease": ["thrombotic", "osteoarthritis", "rheumatoid arthritis"], "Chemical": ["valdecoxib", "diclofenac", "ibuprofen", "naproxen"]}